我们知道，在 2009-10-29 发布的 Ubuntu 9.10 操作系统中已经内置 mono 2.4.2.3 版本了。到了 2009-12-08，mono 2.4.3 版本发布了。随后，在 2009-12-14 日，又发布了 mono 2.6 版本。而 Patric 又在 2009-11-29 日发表了 Mono 2.6 parallel environment on Ubuntu 9.10 ，如下所示：
在上述文章最后提到了软件包中，automake 出现了两次，只需要保留一次。libpango-dev 应该用 libpango1.0-dev 代替。而 libxul-dev 会和 firefox 冲突，我决定不安装 libxul-dev 。于是，就执行以下命令来安装 mono-2.6：
经过漫长的等待，终于安装好了 mono 2.6：
从上面可以看到，mono 2.6 的源程序占用 1.4GB 的磁盘空间，mono 2.6 目标程序占用 134MB 的磁盘空间。实际上，安装完成后，mono 2.6 的源程序就可以使用 rm -rf mono-src 命令删除了。
附：mono_parallel.sh :
#!/bin/bash
#
# Version 0.1
# This script is to install a parallel mono environment with ease
# It only checks out/installs mono 2.6 branch on Ubuntu 9.10 atm
#
# Copyright 2009 (c) QMTech Ltd (http://www.qmtech.net)
# Authors: Patrick McEvoy (firegrass) patrick@qmtech.net
# This is free script under GNU GPL version 3.
# config
# TODO: Allow opt or home install option (hence sudo/no sudo)
# TODO: Allow have 2.6 or trunk
VERSION=2.6
MONO_PREFIX=/opt/mono-$VERSION
#GNOME_PREFIX=/opt/gnome-2.6
WORKING_DIR=~/mono-src/mono-$VERSION
# TODO: webserver/server/workstation (+mod_mono,-gnome,-mono-tools/-gnome,-mono-tools/-mod_mono)
MODE=server
# TODO: Option to hide all output
DEBUG=
#1>&2
echo "MI: This script will download/checkout mono and install in a parallel environment."
echo "MI: Report bugs to patrick@qmtech.net, firegrass on twitter, carrier pidgeon etc"
#
if [ $MODE = "workstation" ] && [ "$(id -u)" = "0" ]; then
echo "MI ERROR: This script should not be run as root" 1>&2
exit 1
fi
echo "MI: Installing mono version $VERSION, building in $WORKING_DIR"
echo "MI: I need sudo access to install mono to /opt and mono-$VERSION in /usr/local/bin"
sudo echo "MI: If the sudo time limit is reached you will need to enter you password again."
# making a dir to work from
mkdir -p $WORKING_DIR
cd $WORKING_DIR
# svn checkouts
SVN_BASE=http://anonsvn.mono-project.com/source/branches/mono-2-6
# modules - hardcoded to branch 2.6
SVN_MODULES="libgdiplus mono mcs mono-tools mod_mono xsp"
for mod in $SVN_MODULES; do
if [ -d $mod ]; then
echo "MI: Updating $mod"
svn up -q $mod || { echo "MI ERROR: Updating $mod failed"; exit 1; }
else
echo "MI: Checking out $mod ($SVN_BASE/$mod)"
svn co -q $SVN_BASE/$mod || { echo "MI ERROR: Checking out $mod failed"; exit 1; }
fi
done
# create enviroment files
cat > "mono-$VERSION-environment" <<EOF
#!/bin/bash
MONO_PREFIX=$MONO_PREFIX
GNOME_PREFIX=/opt/gnome
export DYLD_LIBRARY_PATH=$MONO_PREFIX/lib:$DYLD_LIBRARY_PATH
export LD_LIBRARY_PATH=$MONO_PREFIX/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=$MONO_PREFIX/include:$GNOME_PREFIX/include
export ACLOCAL_PATH=$MONO_PREFIX/share/aclocal
export PKG_CONFIG_PATH=$MONO_PREFIX/lib/pkgconfig:$GNOME_PREFIX/lib/pkgconfig
PATH=$MONO_PREFIX/bin:$PATH
PS1="[mono] \w @ "
EOF
cat > "mono-$VERSION" <<EOF
#!/bin/bash
MONO_PREFIX=$MONO_PREFIX
GNOME_PREFIX=/opt/gnome
export DYLD_LIBRARY_PATH=$MONO_PREFIX/lib:$DYLD_LIBRARY_PATH
export LD_LIBRARY_PATH=$MONO_PREFIX/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=$MONO_PREFIX/include:$GNOME_PREFIX/include
export ACLOCAL_PATH=$MONO_PREFIX/share/aclocal
export PKG_CONFIG_PATH=$MONO_PREFIX/lib/pkgconfig:$GNOME_PREFIX/lib/pkgconfig
PATH=$MONO_PREFIX/bin:$PATH
exec "\$@"
EOF
# install environemnt
chmod +x mono-$VERSION-environment mono-$VERSION
sudo mv mono-$VERSION-environment /usr/local/bin/mono-$VERSION-environment
sudo mv mono-$VERSION /usr/local/bin/mono-$VERSION
# using new environment
. mono-$VERSION-environment
# configure, make, install
for mod in $SVN_MODULES; do
if [ $mod = "mcs" ]; then
# Ignore mcs as built from mono
echo "MI: Skiping mcs module"
elif [ $MODE = "server" ] && [ $mod = "mono-tools" ]; then
echo "MI: Skipping mono-tools (server install)"
elif [ $MODE = "server" ] && [ $mod = "mod_mono" ]; then
echo "MI: Skipping mono-tools (server install)"
else
echo "MI: Installing $mod"
cd $mod
./autogen.sh --prefix=$MONO_PREFIX $DEBUG && \
make $DEBUG && \
sudo make install $DEBUG || { echo "MI ERROR: $mod failed"; exit 1; }
cd ..
fi
done
# Exit message
echo "Your parallel environment is installed"
echo "To start a mono-$VERSION environment, run: source mono-$VERSION-environment"
echo "To use mono-$VERSION to run a cli app, run: mono-$VERSION <your app> (eg mono-$VERSION mono -V)"
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